Summary

This is a RJ45 splitter that I used to connect USB and additional signal like RS232 over a single UTP cable, but you can use it for your own purpose.

Print:

• PLA or PETG
• No support
• 0.20mm

Electrical components:

J45 Breakout Board Module RJ45 to DIP Adapter Plate Ethernet Connector DIY
https://www.aliexpress.com/item/1005001587547694.html

RJ45 Metal 8 Pin Female PCB Right Angle Board Jack LAN Connector With 8 Right Angle Pins
https://www.aliexpress.com/item/1005001975387340.html
Model A2

100pcs 2.54mm 0.1 Pitch PCB Screw Terminal Block Connector 2P
https://www.aliexpress.com/item/1005003152819091.html